A police officer had a perfect hiding place for watching for speeders.
But one day, everyone was under the speed limit, the officer found the problem. A 10 year old boy was standing on the side of the road with a huge hand painted sign which said "RADAR TRAP AHEAD."
A little more investigative work led the officer to the boy’s accomplice, another boy about 100 yards beyond the radar trap with a sign reading "TIPS" and a bucket at his feet, full of change.